Think of a way to program a robot car to be afraid of the dark: as it moves into a tunnel, it reverses back out when it encounters a darker light reading. Resources Light at the Beginning of the Tunnel – NXT-G + ROBOLAB (PDF)

Design and construct a car and learn to program the car to travel a specified distance using multiple methods (time, touch and light). Get your car’s passenger from home to the train station. Going too far or not far enough leaves your passenger in the ghost world. Resources Platform...

Design and construct a sturdy car that can push dirt, and program it to be controlled by touch sensors. Tip 1 : How can the touch sensor be used to trigger the bulldozer to generate more torque? Resources Bulldozer Lesson Plan – NXT + NXT-G/ROBOLAB (PDF) Bulldozer Lesson...

Can you design and program a robot that can travel from one state to another across a large floor map of the USA (or a similar map of another part of the world)? Can you estimate the time required to travel between specific states? Resources Cross Country Adventure lesson plan...

Build a crane that can lift objects one and a half times its weight to a height of 4 inches. Tip 1: What is the relationship between torque and gear-size? Tip 2: Remember, rotation sensors can track the angle turned by the motor. Resources Crane lesson plan (PDF)

How could you build a device that uses sound to indicate the distance to the nearest object? For example, as an aid for a person with vision impairment. Other than using the Ultrasound Sensor, are there any other sensors that could be used to measure distance? Resources Echo Locator lesson...